Spool transfer device for winding machines



March 16, 1943. w; SIIEGENTHAILER SPOOL-TRANSFER DEVICE FOR WINDINGMACHI'INES 'Fnqc; Nov. 22,1941" 4 Patented Mar. 16, 1943 UNITED STTESATENT OFFER SPOOL TRANSFER DEVICE FOR WINDING MACHINES ApplicationNovember 22, 1941, Serial No. 420,114 In Germany November 14, 1940 6Claims.

This invention relates to'spcol transfer devices for winding machines.

The spool transfer device for Winding machines, according to theinvention, comprises a reciprocatory slide carrying a clamping mechanismwhich mechanism automatically cooperates with the spool, when the slidetravels in one direction of movement, for the purpose of removing saidspool out of :position of mounting by moving the spool together with it,and which is rendered inoperative, when the slide travels in theopposite direction of movement.

By this means it is ensured that the completely wound spools aretransferred in a relatively simple manner even if the diameter of thewinding should vary. The spool transfer device, according to theinvention, is applicable with particular advantage to winding machineshaving a plurality of spindles that are arranged on a common rotatablemounting member Without, however, being restricted to this use.-

An embodiment of the invention is illustrated in the accompanyingdrawing, byway of example only, in which Fig. 1 shows an elevation of aWinding machine including a slide, according to the invention, the slidebeing in position of rest;

Fig. 2 is a front elevation of Fig. 1 partly in section;

Fig. 3 is a sectional view of a detail of Fig. 2, and

Fig. 4 is a top plan view of Fig. 1, partly in sec.- tion. 1

In the drawing, the numeral l designates the machine casing carryingexteriorly thereof a disc 3 which is rotatably mounted on anaxle 2projecting out of the casing and is provided with a circumferential rim.On the disc 3 seven winding spindles 4 are mounted in a circular row,each one of these spindles being in working position, that is, positionof winding, at a time. In this position, the individual spool is adaptedto be coupled into driving engagement with a driving spindle whichprojects out of the machine casing l and is longitudinally displaceablyar-' ranged on the casing I.

As shown in the drawing, that winding spindle is in position of windingon which the spool A indicated in Figs. 1 and 3 is mounted for beingwound. On the completion of the winding on the Winding spindle being inposition of winding the rotatable mounting member constituted by thedisc v3 is, advantageously, automatically fed by a step, with the aid ofmeans not shown, from the machine casing in the direction of the arrowindicated in Fig. 2, whereby thewinding spindle next following in therow is moved into coaxial alignment with the driving spindle mentionedabove and is then coupled to the latter. The uncoupling of the windingspindle having previously been in position of winding from the drivingspindle and the subsequent operation of coupling the further windingspindle having arrived in winding position is, advantageously, effectedautomatically from the driving gear of the machine by accordinglyshifting said driving spindle. The character B designates a completelywound spool having been moved out of position of winding, due torotational advancement of the disc 3, as shown in Figs. 1 and 2.

The machine indicated in the drawing is assumed to be a cop windingmachine in which the cop building operation is eifected, in a knownmanner, by means of a thread guide cooperating with the front windingcone while being fed step by step along a carrier rod which is axiallyreclprocated from the driving gear of the machine. The outer ends of thewinding carriers or spools mounted on the winding spindles areindividually received by a counter holder 5 being formed by a boltwhichis axially adjustable relative to a carrier piece I by means of aset screw 6, when the respective winding spindle is in winding positiontogether with the associated spool.

The carrier piece I is slidably mounted on a guide bar 8 arranged on thecasing I and is normally urged in the direction toward the machinecasingl by a coil spring 9 surrounding said bar, for the purpose offorcing the counter holder 5 into bearing engagement with the spool tobe wound. The end of the guide bar 8 remote from the casing I isreceived by the upper portion of a front member It the lower portion ofwhich is secured to a bar H which also is arranged on the casing l. Thetwo bars 8 and I l guide a slide I2 which is provided with an upperfixed projecting arm l3, extending parallel with the guide bar 8, and alower portion of which carries an angular support l4, by means of ascrew lb. The angular support I4 is adjustable in height by means of aslot (not shown) which may be provided in the angular support id, or inthe slide l2, and receives the screw i5, On the angular support M astirrup I6 is held, by means of a bent off leg IT. This stirrup I5 issecured to the angular support it by means of a threaded shank of a bolt18 which shank passes through the leg H. The screw bolt l8 protrudesthroughslots in the parts H. and M whereby it is possible to adjustthestirrup l6 transversely of the slide 12.

A swingable spool gripper arm is mounted on the screw bolt [8, thelatter preventing the stirrup l6 and the bolt from turning relative tothe angular support M by means of a square portion passing through thesaid slots. The arm 20 is acted upon by a torsion spring 2!. The spring2| tends to urge the arm 20 into engagement with the stirrup l6 which isprovided with a recess 22 for receiving said arm and provides a fixedabutment.

Assuming a wound spool to be located between the downwardly extendingend portion of stirrup l6 and. the end of pivoted, spring pressed arm20, the size of the winding is such that the arm cannot swing to itsextreme limit under the influence of the spring 2!. When the stirrup andarm are moved toward the left, the inertia and resistance of the woundspool exert a drag on arm 20 tending to swing it farther to the rightand thus increase the clamping effect against the winding. When movingin the opposite direction, the opposite effect would result, the armbeing swung to the left and the clamping effect relieved.

The slide I 2 is engaged by an actuating rod 23 which is connected witha guide slot carrier arm through a connecting link 24. This arm isfastened to a shaft 26 in order to automatically perform one revolutionat a time, when the machine operates and the spool being in windingposition is completely wound. The connecting link 24 is adjustablerelative to the guide slot carrier arm 25 for the purpose of regulatingthe traverse of the slide 12.

When the slide I2 is advanced from its position of rest shown in Fig. 1toward the front by the action of the shaft 26 on the completion of thewinding on an individual spool, the projecting arm l3 of the slide meetswith the carrier piece 1 which piece is thus displaced against theinfluence of the compression spring 9, so that the counter holder 5releases the spool being in winding position at that time. concomitantlywith said releasing operation also the winding feeler is moved out ofthe embrace of this spool by the action of the slide l2 by which meansthe preliminaries for feeding the disc 3 in the corresponding directionof rotation by one step are completed.

After the disc 3 has been fed by one step, in consequence of which, thecompletely wound spool A was removed from the winding position in orderto be moved to the spot, that is, the transfer position at; which thespool B is shown to be positioned, the return movement of the slide l2begins. In this way the stirrup i6 is displaced so as to overlie thewinding of the full spool situated in spool transfer position, so thatthe stirrup grips behind the winding and the arm 23 wipes over thelatter. On the termination of the return movement of the slide l2 thecondition of the transfer device as shown in Fig. 4 is obtained, inwhich the completely wound spool, then being in spool transfer position,is clamped between the stirrup l6 and the arm 20'and is moved along bythe clamping mechanism constituted by said two parts, while the slide l2performs the next following traverse, thereby being pulled out of themounting head of the respective winding spindle 4. The rotational feedmovement of the disc 3 then begins followed by the return movement ofthe slide i2, and so forth.

The advance movement of the slide I2 is stopped abruptly when the latterhas reached the end of its traverse, the spool of relatively greatweight being entrained by the clamping mechanism IS, 20 then having thetendency, due to inherent inertia, to keep on moving in the direction oftravel, whereby said spool overcomes the comparatively small power ofthe torsion spring 2| and thus turns the clamping arm 20 in thecorresponding direction, thereby counteracting the clamping effectproduced by the parts 16 and 20, so that the spool individually furtheradvances to a slight extent, thereby dropping out of the clampingmechanism. In Figs. 3 and 4 the clamping mechanism I5, 20 is shown to bein a condition ready for operation.

The pivot bolt l8 of the clamping arm 23 makes it possible to adjust thearm 20 and the stirrup I8 transversely of the slide 12 in simplefashion, dependent upon requirements, that is, in accord ance with thethickness of winding to be effected.

In the present instance the winding feeler means of the winding machineis adapted to carry the thread guide. It will, however, be readily seenthat the spool transfer device according to the invention is applicablealso to winding machines, which are provided solely with a thread guidebeing fed step by step and are thus devoid of winding feeler means.Further, the Winding machine may be devoid of a counter holder for thespool being in winding position. Again, there is no absolute necessityfor the winding machine to possess a plurality of winding spindles thatare mounted on a common rotatable mounting member. Moreover, theconstruction of the spring-influenced clamping mechanism for thetransfer of the full spools may be varied, as desired, and concerningthe term spool this term is intended to cover any suitable windingcarrier means.

I claim:

1. In a spool transfer device for winding machines of the typedescribed, a reciprocatoiy slide, a clamping mechanism carried by saidslide, and means influencing said clamping mechanism to automaticallycooperate with the winding on a spool for removing said spool out of itsmounting position in the machine, while said slide travels in onedirection of movement, said clamping mechanism being inefiective to gripa spool while said slide travels in the opposite direction of movement.

2. In a spool transfer device for winding machines of the type having aplurality of winding spindles, a rotatable mounting member in commonwith said winding spindles, feed means for rotatively advancing saidmounting member for successively moving said spindles into and out of aa position of winding in the machine, the transfer device comprising, areciprocatory slide, a clamping mechanism carried by said slide andlocated at a position removed from the winding position of the spindles,and means controlling said clamping mechanism to automatically c0operatewith the winding on a spool which has been rnoved out of said positionof winding for removmg said spool out of its mounting position on saidmounting member, while said slide travels in one direction of movement,said clamping mechanism being ineffective to grip a spindle while saidslide travels in the opposite direction of movement.

3. In a spool transfer device for winding machines of the typedescribed, a reciprocatory slide, a clamping mechanism carried by saidslide, a fixedabutment and a cooperative spring-influcnced swingablespool gripper arm included in said mechanism, and spring meansinfluencing said clamping mechanism to automatically grasp a spool, bythe winding thereon, between said abutment and said gripper arm, forremoving said spool out of its mounting position in the machine, whilesaid slide travels in one direction of movement, said clamping mechanismbeing ineffective to grasp a spool while said slide travels in theopposite direction of movement.

4. In a spool transfer device for winding machines of the typedescribed, a reciprocatory slide, a clamping mechanism carried by saidslide, a fixed abutment and a cooperative spring-influenced swingablespool gripper arm included in said mechanism, said abutment and thepivot axis of said gripper arm being relatively adjustable transverselyof said slide, and means adapting said clamping mechanism toautomatically grasp a spool, by the winding thereon, between saidabutment and said gripper arm against said spring influence, forremoving said spool out of its mounting position in the machine, whilesaid slide travels in one direction of movement, said clamping mechanismbeing ineffective to grasp a spool While said slide travels in theopposite direction of movement.

5. In a spool transfer device for winding machines of the typedescribed, a reciprocatory slide, a clamping mechanism associated withsaid slide, said clamping mechanism comprisin a stirrup, providing afixed abutment, and a cooperative spring-influenced swingable spoolgripper arm; a supporting member on said slide carrying said stirrup andthe pivot axis of said gripper arm so as both to be adjustably fixed tosaid member transversely of said slide, and spring means influencingsaid clamping mechanism to automatically grasp a spool, by the windingthereon, between said stirrup and said gripper arm for removing saidspool out of its mounting position in the machine while said slidetravels in one direction of movement, said clamping mechanism beingineffective to grasp a spool while said slide travels in the oppositedirection of movement.

6. In a spool transfer device for winding machines of the typedescribed, a reciprocatory slide, a clamping mechanism associated withsaid slide, said clamping mechanism comprising a stirrup, providing afixed abutment, and a cooperative spring-influenced swingable spoolgripper arm included in said mechanism, a supporting member on saidslide carrying said stirrup and the pivot axis of said gripper arm so asboth are adjustably fixed to said member transversely of said slide, apivot bolt for said gripper arm adjustably fixing said stirrup and saidgripper arm commonly to said supporting member, and spring meansinfluencing said clamping mechanism to automatically grasp a spool, bythe winding thereon, between said stirrup and said gripper arm forremoving said spool out of its mounting position in the machine whilesaid slide travels in one direction of movement, said clamping mechanismbeing inefiective to grasp a spool while said slide travels in theopposite direction of movement.

WALTER SIEGEN'II-IALER.

